Who is Gama Pehlwan, the undefeated wrestling champion honoured by Google?

Google Doodle on Sunday marked the 144th birth anniversary of Gama Pehlwan, the Amritsar-born wrestler who remained undefeated throughout his international matches and earned the name 'The Great Gama'. The wrestler saved the lives of many people during the Partition of India in 1947. Notably, Bruce Lee was a known admirer of Gama and incorporated aspects of his training routine.